Ore-concentrator.



No. 895,'170. y PATBNTED AUG. 4. 190s.

E. DBISTBR.

om: CONCBNTR APPLICATION YILBD OCT. 8, 1906.

ATOR.

ATTORNEY ii..v

`tritt@ein) STATES riguar cerros.

, 1 rain, osisriaa) im. 895,170." A

To all whom it may conce-m.'

Be it known that I, Emi. Dnisrnn, a citi-r` zen of the United States of America, and resi@- dent of Fort W'ayne, in' the county of Allen and State of indiana, have invented certain new and useful Improvements in Ore-Concentrators, of which the following is a Specification.

This invention relates to improvements in ore concentrators and the objects thereof are: 7

First, to provide a concentrating table so constructed as to eilect the movement of gangue thereon at a broad angle from thatin which the underlying mineral moves; and second, to provide riilles so arranged upon the table as to inost effectively act upon the mineral in its various stages during the passage of pulp over the table..

My objects are accomplished by the construction illustrated in theI accompanying drawings in which Figure 1 is a plan view of an orc concentrating table showing the relative arrangeinent of ritlles thereon; Fig. 2 is a cross section of the table projected froin lines drawn parallel with the ritlles, the section being on the line :ic- 9: ofFig. 1;' Fig. 3 is a section of the table, the section being on the line y-fy of Fig. 1 and Fig. 4 is a detail sectional view through the parts 4 and 5 of the table.

Similar numerals of reference indicate. corresponding )arts throughout thc several views and reierring now to the saine: 1 is a rhomboidal table having a )rejecting breast board 2 at its rear end anti a similarly projectiiig liead-board 3 at one side thereof. The head-board 3 has an extension 4 which projects upward along the adjacent ortion at the front end of the table, and a eather edged Shoal board 5 is secured upon the sur-` face of the table adjacent the extension 4, its feather edge extending out onto the table.

A particular feature of this invention reles in the arrangement and character of the tiles: l`he movement of the table is reci iro-A eal and in end-wise direction as indicated by the. arrow, and the ritlles are arranged par- "lei to the line of motion.A 'lhese rillles are arranged in groups i5, T, 8, 9 and 10, each group being separated from the adjacent group by a high rillle l1 which is tapered, its greatest height beiiigat the breast-board 2.

riiles eaclnhusuu oil-set 12, whereY it decreases suddenly in'height, the respective ORE-CONCENTRATOR.

Specification of Letters Patent. k\ i j Application filed vDetener 8, 190455,V Serial No. 337,963.

5 ings side, an( The rililes or cach group as well as the high i i l y `OFXFORT WAYNE, INDIANA, ASSIGNOR TO THE vDEISTER CONCEXTRATUR COMIANY, A CORPORATION OF INDIANA.

Pute-fusi Aug. 4, 1908.

otf-sets being located approximately on the line 2-2 of Figfl, and from said oilsets the riilles each extend to thc forward edge of the concentrating surface of the table, except the alternato riflles of soine of the grou s nearest the tailings discharge edge 13. T ie said alternate riilles terminate upon the surface of the table approximately on the line z-z.

Another feat-ure of the invention lies in the particular manner in which the, rililes of one groupare spaced relative to those of another group, and also in the relative heights of the ritlles ol' the various groups. For instance: A The ritlles ofthe group 6 are of greater height 70 and are spacetljwider apart than the ritlles of the group 7, and it shouldfbe noted iarticularly that the higher the riiile, theroader the space, and the highest ritlles are located in the groups nearest the. head-board or feed 75 side of thc table, while the lowest riflles are located in the grou s nearest the tailings dis, charge side thereofi` l have discovered that high riflles spaced far apart are most suitable -for catching 30 coarse and heavy mineral particles, whileV rittles of less height placed closer together are more efiective in catching liner and light-er mineral particles. Therefore. since the heavier and coarser particles settle more quickly than the Vliner and lighter particles, the groups of high ritlles are located nearest the head-board, while the groups o f riilles of least height are located nearest the tailings discharge side of the table. The high ritlles 11 project. above the riiiles of the respective adjacent groups and causo the respective )receding groups to become flooded. hns each flooded group forms a sott-ling bed, in which the mineral particles more readily settle than would occur it `the pulp was permitted to rush freely from riitle to riHle and form eddies which keep the mineral in a constant state of agitation.

ln the operation of this invention, the table is slanted downward toward the tailings discharge side and upward toward the front end, and the pulp is fed onto the surface of the table in a suitable manner adjacent the headboard. Owing to the transveise slant. of the table the pu] moves thereon toward the tailithc heavier and eoaiscr minerali particles are caught bv the riiies of the iilst Y ffiou s and become directed forward to the shoa -board 5 along which they accumulate 11o 'somewhst'and displace the gangue, und gradually pass te the mineral launder 1l atthe forward end fof the table. The finer and lighter rninerhl particles settle subsequently` direct the settled mineral so that it passes into the, mineral launder. ter is supplied by means of a launder 15 having sponts 16 leading therefrom which oxtend above. the forward end of the table.

Having described my invention what f claim as new and desire to secure by Letters Patent is:

l. .l n an ore conccntrator, a reci rocating tat-le having thereon a series of rill es which lie lengthwise in the line of reciprocation and ali cf which are parallel respecting one another',- oceasionalof said riflles heilig of greater height than the riflles adjacent thereto, the ritlles intervening between said occasional high rifles at the feed side of the table being s. seed farther apart than the similar rillles at tfile 'railing discharge side thereof, seid riflles being alternately of different lengths the longer of which extend to the. concentrates discherge edge of the table while the shorter ritles terminate at, points suitably distant therefrom.

2. In encre concentrator, a reci )rocating table having thereon a series of fifties which lie lengthwise'in the line of reciprocation and all of which are parallel respecting one another, some of said rillles extending from t-he Arear end of the table entirely to the concentrates discharge end thereof, and others of The dressing. ww'

oblique ends respecting the line of reciproca-- tion; a series of rillles all yof which are parallel res )acting one another and the sides of the talile, and all of which extend from the rear end of the. table to a line suitably distant from the concentrates discharge edge at the forward end thereof, sonic of said ritlles having extensions which reach the concentrates discharge edge, the rifilesncarest the feed side of the table having a steeper taper and being placed farther a art than those at the tailirg discharge side t iereof.

4. In zzn-ore concentrator, a rhoinboidal reciprocating table the sides of which are parallel to the line of reciprocation and the ends of which are oblique t loreto; a series of rifiles all of which are parallel with res )ect to v the line of motion and sides of t. e teh c, and all of which extend from the rea: end of the table to a line-suitably distant from the. concentrates discharge end thereof, there being a. substantial uniformity in thc lengths of said rillles, the rillles at the feed side of the tahle having a steeper taper and being spared farther apart than those at the. tailing discharge side. thereof, occasional of said rillles being higher than the rillles adjacent thereto and some of said ritlles extending forward beyond the other riflles to the concentrates discharge end of the table.

In testimony whereof I allix inytsignature, in presence of two witnesses.

EMIL DEISTER. 'itnesses:

.\I. .\1-;'IrLER, W. G.. BURNS. 

